Pentpentoctium (Ppo)

Pentpentoctium is the systematic name of the theoretical 558. element in the periodic table with a symbol of Ppo and atomic number of 558. Pentpentoctium, also known as element 558, has ħames mija u tmienja u ħamsin protons in its nucleus, and ħames mija u tmienja u ħamsin electrons in its shells.